Tableau de données
| 1980 | 231 Md | 1996 | 642 Md | 2012 | 1,33 Bn |
| 1981 | 205 Md | 1997 | 591 Md | 2013 | 1,36 Bn |
| 1982 | 198 Md | 1998 | 620 Md | 2014 | 1,38 Bn |
| 1983 | 173 Md | 1999 | 635 Md | 2015 | 1,21 Bn |
| 1984 | 173 Md | 2000 | 598 Md | 2016 | 1,24 Bn |
| 1985 | 182 Md | 2001 | 628 Md | 2017 | 1,32 Bn |
| 1986 | 252 Md | 2002 | 708 Md | 2018 | 1,43 Bn |
| 1987 | 319 Md | 2003 | 908 Md | 2019 | 1,4 Bn |
| 1988 | 375 Md | 2004 | 1,07 Bn | 2020 | 1,29 Bn |
| 1989 | 413 Md | 2005 | 1,16 Bn | 2021 | 1,46 Bn |
| 1990 | 536 Md | 2006 | 1,26 Bn | 2022 | 1,45 Bn |
| 1991 | 577 Md | 2007 | 1,48 Bn | 2023 | 1,62 Bn |
| 1992 | 631 Md | 2008 | 1,64 Bn | 2024 | 1,73 Bn |
| 1993 | 530 Md | 2009 | 1,49 Bn | 2025 | 1,9 Bn |
| 1994 | 532 Md | 2010 | 1,43 Bn | 2026 | 2,09 Bn |
| 1995 | 615 Md | 2011 | 1,49 Bn | | |
Tableau de données
| 1980 | 99,3 Md | 1996 | 489 Md | 2012 | 1,04 Bn |
| 1981 | 113 Md | 1997 | 519 Md | 2013 | 1,03 Bn |
| 1982 | 130 Md | 1998 | 556 Md | 2014 | 1,04 Bn |
| 1983 | 148 Md | 1999 | 595 Md | 2015 | 1,09 Bn |
| 1984 | 166 Md | 2000 | 648 Md | 2016 | 1,12 Bn |
| 1985 | 185 Md | 2001 | 701 Md | 2017 | 1,17 Bn |
| 1986 | 211 Md | 2002 | 750 Md | 2018 | 1,21 Bn |
| 1987 | 236 Md | 2003 | 803 Md | 2019 | 1,25 Bn |
| 1988 | 262 Md | 2004 | 860 Md | 2020 | 1,13 Bn |
| 1989 | 294 Md | 2005 | 928 Md | 2021 | 1,24 Bn |
| 1990 | 327 Md | 2006 | 1 Bn | 2022 | 1,38 Bn |
| 1991 | 359 Md | 2007 | 1,08 Bn | 2023 | 1,5 Bn |
| 1992 | 387 Md | 2008 | 1,11 Bn | 2024 | 1,59 Bn |
| 1993 | 403 Md | 2009 | 1,07 Bn | 2025 | 1,69 Bn |
| 1994 | 427 Md | 2010 | 1,08 Bn | 2026 | 1,77 Bn |
| 1995 | 460 Md | 2011 | 1,07 Bn | | |
Tableau de données
| 1980 | 522 Md | 1996 | 779 Md | 2012 | 1,1 Bn |
| 1981 | 520 Md | 1997 | 809 Md | 2013 | 1,09 Bn |
| 1982 | 526 Md | 1998 | 845 Md | 2014 | 1,1 Bn |
| 1983 | 535 Md | 1999 | 885 Md | 2015 | 1,15 Bn |
| 1984 | 544 Md | 2000 | 930 Md | 2016 | 1,18 Bn |
| 1985 | 557 Md | 2001 | 966 Md | 2017 | 1,21 Bn |
| 1986 | 576 Md | 2002 | 993 Md | 2018 | 1,24 Bn |
| 1987 | 609 Md | 2003 | 1,02 Bn | 2019 | 1,27 Bn |
| 1988 | 641 Md | 2004 | 1,05 Bn | 2020 | 1,13 Bn |
| 1989 | 673 Md | 2005 | 1,09 Bn | 2021 | 1,2 Bn |
| 1990 | 699 Md | 2006 | 1,14 Bn | 2022 | 1,28 Bn |
| 1991 | 717 Md | 2007 | 1,18 Bn | 2023 | 1,31 Bn |
| 1992 | 723 Md | 2008 | 1,18 Bn | 2024 | 1,36 Bn |
| 1993 | 714 Md | 2009 | 1,14 Bn | 2025 | 1,4 Bn |
| 1994 | 730 Md | 2010 | 1,14 Bn | 2026 | 1,43 Bn |
| 1995 | 760 Md | 2011 | 1,13 Bn | | |